HP 647903-B21 32GB Memory PC3-10600
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HP 647903-B21 32GB Memory PC3-10600 DDR3 SDRAM Lrdimm New

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Part Number#: 647903-B21
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Short Description:
647903-B21 32 Gigabytes(GB) (1X32GB) 1333 Megahertz (MHz) Pc3l-10600l Cl9 Quad Rank 1.35v Low Voltage Double Data Rate 3 (DDR3) Synchronous Dynamic Random Access Memory (SDRAM) Load-Reduced 240-Pin Lrdimm Memory Module Gen8 for Server | Made by HP | Brand New 3 Years Warranty
Brand Warranty:
3 Years from the Manufacturer
Product Condition:
New Factory Sealed
Warranty provided by ALLHDD.COM:
90 Days

Product overview for the HP 647903-B21

In the realm of server hardware, memory plays a crucial role in ensuring optimal performance and efficiency. One notable component in this domain is the HP 647903-B21 32GB memory module. This detailed explanation will break down the specifications and features of this memory module, providing a comprehensive understanding of its capabilities.

HP 647903-B21 Overview

The HP 647903-B21 is a memory module designed for server systems. Its specifications are tailored to meet the demands of high-performance computing environments, making it an ideal choice for servers in various industries.

Capacity: 32GB (1X32GB)

One standout feature of the HP 647903-B21 is its substantial capacity of 32 gigabytes. This ample storage is crucial for servers that handle resource-intensive tasks, ensuring smooth operations and the ability to manage large datasets efficiently.

Memory Speed: 1333MHz

The memory speed, or frequency, of a RAM module, is a critical factor in determining how quickly it can access and transfer data. The HP 647903-B21 operates at a speed of 1333 megahertz (MHz), signifying a high-performance capability suitable for demanding computing tasks.


The memory module utilizes DDR3 Synchronous Dynamic Random-Access Memory (SDRAM) technology. DDR3 is a widely adopted standard known for its reliability and efficiency in data transfer. SDRAM ensures that the memory operates in synchronization with the system's clock, enhancing overall performance.

CL9 Quad Rank

The CL9 designation refers to the Column Address Strobe (CAS) latency of the memory module. A lower CAS latency indicates faster data access. In this case, CL9 signifies a relatively low latency, contributing to the efficiency of the HP 647903-B21.

The Quad Rank feature implies that there are four rank sets of memory on a single module. This is advantageous for servers dealing with multitasking and parallel processing, as it allows for better handling of multiple requests simultaneously.

Low Voltage: 1.35V

Power efficiency is a critical concern in server environments, where energy consumption can have a significant impact on operational costs. The HP 647903-B21 addresses this by operating at a low voltage of 1.35 volts. This not only reduces power consumption but also contributes to heat reduction, promoting a more stable and cooler operating environment.

Load-Reduced (LRDIMM)

Load-Reduced Dual Inline Memory Module (LRDIMM) is a technology that enhances the memory capacity that can be supported by a server. It achieves this by reducing the electrical load on the memory bus, allowing for larger memory configurations without sacrificing performance. The HP 647903-B21's LRDIMM design is well-suited for memory-intensive applications and large-scale data processing.

240-Pin Form Factor

The physical design of the memory module is characterized by its 240-pin form factor. This form factor is standard for DDR3 memory modules, ensuring compatibility with a wide range of server systems. The 240-pin configuration also contributes to the stability and reliability of the connection between the memory module and the server's motherboard.

Gen8 Compatibility

The "Gen8" in the product description signifies compatibility with Generation 8 servers, aligning with HP's server generation nomenclature. This compatibility ensures that the HP 647903-B21 is optimized for use with the latest server technologies, providing users with a reliable and up-to-date memory solution.

Benefits of HP 647903-B21 in Server Environments Enhanced Performance

The combination of high capacity, optimal speed, and low latency in the HP 647903-B21 results in enhanced server performance. Servers equipped with this memory module can handle complex computations, large datasets, and multiple concurrent tasks with efficiency.

Power Efficiency

The low voltage operation of 1.35V contributes to the overall power efficiency of servers. In data centers where power consumption is a critical consideration, the HP 647903-B21 offers a balance between performance and energy savings.


The Load-Reduced (LRDIMM) design allows for scalability, making it suitable for servers that require expansive memory configurations. This is particularly beneficial for applications such as virtualization, database management, and scientific computing that demand large memory capacities.

Compatibility and Reliability

The 240-pin form factor ensures compatibility with a wide range of server systems. Additionally, the Gen8 compatibility guarantees optimal performance when integrated into Generation 8 servers. The reliability of HP products further underscores the dependability of the HP 647903-B21 in mission-critical server environments.

General Information about the HP 647903-B21

  • Manufacturer: HP
  • Model Number or SKU# 647903-B21
  • Product Type: Memory (RAM)
  • RAM Type: Pc3-10600
  • Product Name: 32GB DDR3 SDRAM Lrdimm Memory Module

Technical Information for the 32GB RAM

  • Storage Capacity: 32GB
  • Memory Technology: DDR3 SDRAM
  • Number Of Modules: 1 X 32GB
  • Bus Speed: 1333mhz DDR3-1333/Pc3l-10600l
  • Data Integrity Check: ECC
  • Ram Features: Quad Rank Low Voltage
  • Cas Latency Timings: Cl9
  • Pin Count: 240-Pin
  • Voltage: 1.35v
  • Module Type: Server Memory ( Not For Desktops )
  • Platform Support: Proliant Server
  • Additional Information: Load Reduced Low Voltage Memory Module Lrdimm

Compatibility of 32GB Memory Module

  • Proprietary HP Proliant Server - Dl160 Gen8
  • Proprietary HP Proliant Server - Dl360e Gen8
  • Proprietary HP Proliant Server - Dl360p Gen8
  • Proprietary HP Proliant Server - Dl380e Gen8
  • Proprietary HP Proliant Server - Dl380p Gen8
  • Proprietary HP Proliant Server - Dl560 Gen8
  • Proprietary HP Proliant Server - Ml350p Gen8
  • Proprietary HP Proliant Server - Bl420c Gen8
  • Proprietary HP Proliant Server - Bl460c Gen8
  • Proprietary HP Proliant Server - Bl660c Gen8
  • Proprietary HP Proliant Server - Ws460c Gen8

In general, the HP 647903-B21 32GB memory module stands out as a high-performance, power-efficient, and scalable solution for server environments. Its impressive specifications, including 32GB capacity, 1333MHz speed, low voltage operation, Quad Rank design, and LRDIMM technology, make it a reliable choice for servers handling demanding workloads. Whether used in data centers, enterprise servers, or other mission-critical applications, the HP 647903-B21 contributes to the overall efficiency and reliability of server systems.

Brand Warranty:
3 Years from the Manufacturer
Product Condition:
New Factory Sealed
Warranty provided by ALLHDD.COM:
90 Days

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